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17 Questions

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Chemistry of Pyrethrum Plant

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Questions and Answers

What is the principal cultivated source of Pyrethrum flower?

India

Kenya (correct)

Brazil

Japan

Which active constituent is NOT found in Carthamus tinctorius petals?

Pyrethrin (correct)

Safflor yellows A and B

Carthamin

Isocarthamin

What altitude range is favorable for Pyrethrum cultivation?

0-500 m

1900-2700 m (correct)

600-1000 m

Above 3000 m

For how many months does the collection of Pyrethrum flower take place?

9 months Signup and view all the answers

In Iranian folklore medicine, what are the recommended uses of Safflower?

Laxative effects and treating rheumatism Signup and view all the answers

Which of the following is NOT an active constituent isolated from Carthamus tinctorius petals?

Chlorophyll Signup and view all the answers

What are the key active constituents found in Pyrethrum flowers that contribute to their insecticidal properties?

All of the above Signup and view all the answers

Which of the following cell types in Pyrethrum flowers are responsible for producing the insecticidal esters?

Oil glands, resin ducts, and mesophyll cells Signup and view all the answers

Which of the following is NOT a characteristic of the powder obtained from Pyrethrum flowers?

Presence of T-shaped hairs Signup and view all the answers

Which of the following is the alcohol component of the pyrethrins found in Pyrethrum flowers?

Pyrethrolone Signup and view all the answers

Which of the following is NOT a key active constituent found in Pyrethrum flowers?

Safflower Signup and view all the answers

Which of the following statements is true about the constituents of chamomile flower-heads?

They are required to contain at least 0.4% of a blue volatile oil. Signup and view all the answers

Which of the following statements is true about the formation of chamazulene in chamomile?

Chamazulene is formed from a sesquiterpene lactone called matricin during steam distillation. Signup and view all the answers

Which of the following statements is incorrect about the constituents of chamomile?

The dried ligulate florets contain less than 0.3% of free apigenin. Signup and view all the answers

What is the primary use of Anthemis nobilis Matricaria flowers mentioned in the text?

For their anti-inflammatory and spasmolytic properties. Signup and view all the answers

Which of the following statements is true about the ulcer-protective properties of German chamomile?

They have been ascribed to the bisabolol-type constituents. Signup and view all the answers

What is mentioned in the text as an allied drug of chamomile?

Chrysanthemum parthenium (L.) Bernh. Signup and view all the answers